hibernation fridge

The limestone pebbles are great, you can sprinkle the flour around his enclosure, then just water it, it will go hard and boris can chew to his hearts content :-)
You may be the BATK's newest member, but you could teach them a thing or two about cross-contamination :-)
You usually find if the pebbles was small enough to be swallowed, its small enough to pass through the other end, poop sounds normal too